From: Stas Sergeev <stssppnn@yahoo.com>
To: linux-msdos@vger.kernel.org
Subject: Re: segfault with backtrace and information
Date: Mon, 09 Dec 2002 20:34:49 +0300 [thread overview]
Message-ID: <3DF4D439.9040108@yahoo.com> (raw)
Hello.
Peter Jay Salzman wrote:
> #0 0x080aeda4 in real_yylex (yylval=0x4d003b) at lexer.l:707
[]
> Cannot access memory at address 0x4d003b
> i'm a bit confused at this point. it looks like the address returned
> by strdup is no good, but i have no idea how that can be.
It is rather an yylval points to a wrong
place (0x4d003b), so dereferencing it
fails.
Try:
(gdb) b real_yylex
(gdb) r
Breakpoint 1, real_yylex (yylval=0xbfffee78) at lex.yy.c:1598
1598 if ( yy_init )
(gdb) bt
> this seems to be a problem with
> this machine only, but nothing about this looks arch dependent to me.
Maybe optimisation? What gcc do you have?
Try different versions like 2.91 (aka kgcc
if it is a RedHat distro), 2.95 or 3.x.
> any suggestions?
Try running dosemu under a memory debugger
(I use njamd for that) - maybe it is a
memory corruption somewhere.
Or maybe upgrade your bison/flex?
next reply other threads:[~2002-12-09 17:34 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-12-09 17:34 Stas Sergeev [this message]
-- strict thread matches above, loose matches on Subject: below --
2002-12-08 20:30 segfault with backtrace and information Peter Jay Salzman
2002-12-08 20:31 ` Peter Jay Salzman
2002-12-14 13:23 ` Emmanuel Jeandel
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